/* roulang page: index */
:root {
            --clr-bg: #1c1815;
            --clr-bg-alt: #231f1b;
            --clr-bg-card: rgba(255, 248, 230, 0.04);
            --clr-bg-card-hover: rgba(255, 248, 230, 0.08);
            --clr-primary: #c9a84c;
            --clr-primary-light: #dfc26a;
            --clr-primary-dark: #a88a32;
            --clr-secondary: #9e4a3a;
            --clr-secondary-light: #b85a48;
            --clr-text: #ede4d3;
            --clr-text-muted: #a89880;
            --clr-border: #5a4d3a;
            --clr-border-light: #7a6a50;
            --radius: 6px;
            --radius-lg: 12px;
            --shadow: 0 2px 12px rgba(0,0,0,0.3);
            --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
            --font-title: 'Noto Serif SC', 'Georgia', serif;
            --font-body: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --transition: 0.25s ease;
            --nav-width: 220px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-body);
            font-weight: 400;
            line-height: 1.7;
            color: var(--clr-text);
            background: var(--clr-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a { color: var(--clr-primary); text-decoration: none; transition: color var(--transition); }
        a:hover, a:focus { color: var(--clr-primary-light); outline: none; }
        a:focus-visible { outline: 2px solid var(--clr-primary); outline-offset: 2px; border-radius: 2px; }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-family: var(--font-title); font-weight: 700; line-height: 1.3; color: var(--clr-text); }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
        .section { padding: 80px 0; }
        .section-title {
            font-size: 2rem;
            text-align: center;
            margin-bottom: 12px;
            letter-spacing: 2px;
        }
        .section-subtitle {
            text-align: center;
            color: var(--clr-text-muted);
            max-width: 640px;
            margin: 0 auto 48px;
            font-size: 1.05rem;
        }
        .section-divider {
            width: 60px;
            height: 3px;
            background: var(--clr-primary);
            margin: 16px auto 32px;
            border-radius: 2px;
        }

        /* ===== Layout ===== */
        .app-wrapper {
            display: flex;
            min-height: 100vh;
        }

        /* ===== Side Nav ===== */
        .side-nav {
            width: var(--nav-width);
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            background: var(--clr-bg-alt);
            border-right: 1px solid var(--clr-border);
            display: flex;
            flex-direction: column;
            z-index: 100;
            padding: 32px 20px;
            transition: transform var(--transition);
        }
        .side-nav .nav-logo {
            font-family: var(--font-title);
            font-size: 1.3rem;
            font-weight: 900;
            color: var(--clr-primary);
            letter-spacing: 3px;
            padding-bottom: 28px;
            border-bottom: 1px solid var(--clr-border);
            margin-bottom: 32px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .side-nav .nav-logo i {
            font-size: 1.5rem;
            color: var(--clr-primary-light);
        }
        .side-nav .nav-links { flex: 1; display: flex; flex-direction: column; gap: 6px; }
        .side-nav .nav-links a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius);
            color: var(--clr-text-muted);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .side-nav .nav-links a i { width: 20px; text-align: center; font-size: 1rem; }
        .side-nav .nav-links a:hover,
        .side-nav .nav-links a:focus-visible {
            color: var(--clr-text);
            background: rgba(201, 168, 76, 0.08);
            border-color: rgba(201, 168, 76, 0.15);
        }
        .side-nav .nav-links a.active {
            color: var(--clr-primary);
            background: rgba(201, 168, 76, 0.12);
            border-color: rgba(201, 168, 76, 0.25);
            font-weight: 600;
        }
        .side-nav .nav-footer {
            padding-top: 20px;
            border-top: 1px solid var(--clr-border);
            font-size: 0.75rem;
            color: var(--clr-text-muted);
            text-align: center;
            line-height: 1.6;
        }

        /* ===== Mobile Top Bar ===== */
        .mobile-top-bar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 110;
            background: var(--clr-bg-alt);
            border-bottom: 1px solid var(--clr-border);
            padding: 12px 20px;
            align-items: center;
            justify-content: space-between;
        }
        .mobile-top-bar .mobile-logo {
            font-family: var(--font-title);
            font-size: 1.1rem;
            font-weight: 900;
            color: var(--clr-primary);
            letter-spacing: 2px;
        }
        .mobile-top-bar .mobile-menu-toggle {
            background: none;
            border: 1px solid var(--clr-border-light);
            color: var(--clr-text);
            font-size: 1.4rem;
            padding: 6px 12px;
            border-radius: var(--radius);
            cursor: pointer;
            transition: background var(--transition);
        }
        .mobile-top-bar .mobile-menu-toggle:hover { background: rgba(255,255,255,0.05); }

        .mobile-menu-overlay {
            display: none;
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.7);
            z-index: 105;
        }
        .mobile-menu-overlay.open { display: block; }
        .mobile-menu-drawer {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 260px;
            background: var(--clr-bg-alt);
            border-right: 1px solid var(--clr-border);
            z-index: 106;
            padding: 32px 20px;
            flex-direction: column;
            transform: translateX(-100%);
            transition: transform 0.3s ease;
        }
        .mobile-menu-drawer.open { transform: translateX(0); display: flex; }
        .mobile-menu-drawer .drawer-logo {
            font-family: var(--font-title);
            font-size: 1.2rem;
            font-weight: 900;
            color: var(--clr-primary);
            letter-spacing: 2px;
            padding-bottom: 24px;
            border-bottom: 1px solid var(--clr-border);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .mobile-menu-drawer .drawer-links { flex: 1; display: flex; flex-direction: column; gap: 6px; }
        .mobile-menu-drawer .drawer-links a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: var(--radius);
            color: var(--clr-text-muted);
            font-weight: 500;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .mobile-menu-drawer .drawer-links a i { width: 20px; }
        .mobile-menu-drawer .drawer-links a:hover { color: var(--clr-text); background: rgba(201,168,76,0.08); }
        .mobile-menu-drawer .drawer-links a.active { color: var(--clr-primary); background: rgba(201,168,76,0.12); border-color: rgba(201,168,76,0.25); }
        .mobile-menu-drawer .drawer-footer {
            padding-top: 20px;
            border-top: 1px solid var(--clr-border);
            font-size: 0.75rem;
            color: var(--clr-text-muted);
            text-align: center;
        }

        /* ===== Main Content ===== */
        .main-content {
            margin-left: var(--nav-width);
            flex: 1;
            min-height: 100vh;
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            padding: 120px 40px 100px;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            min-height: 520px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(28,24,21,0.92) 30%, rgba(28,24,21,0.6) 70%, rgba(28,24,21,0.3) 100%);
        }
        .hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
        }
        .hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            border: 1px solid var(--clr-primary);
            border-radius: 30px;
            font-size: 0.8rem;
            color: var(--clr-primary);
            letter-spacing: 1px;
            margin-bottom: 24px;
            background: rgba(201,168,76,0.08);
        }
        .hero h1 {
            font-size: 3rem;
            font-weight: 900;
            letter-spacing: 4px;
            line-height: 1.2;
            margin-bottom: 16px;
            color: #fff;
        }
        .hero h1 span { color: var(--clr-primary); }
        .hero .hero-desc {
            font-size: 1.15rem;
            color: var(--clr-text-muted);
            max-width: 560px;
            margin-bottom: 32px;
            line-height: 1.8;
        }
        .hero .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius);
            font-weight: 600;
            font-size: 0.95rem;
            letter-spacing: 0.5px;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition);
            font-family: var(--font-body);
        }
        .btn-primary {
            background: var(--clr-primary);
            color: #1c1815;
            border-color: var(--clr-primary);
        }
        .btn-primary:hover, .btn-primary:focus-visible {
            background: var(--clr-primary-light);
            border-color: var(--clr-primary-light);
            color: #1c1815;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(201,168,76,0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--clr-text);
            border-color: var(--clr-border-light);
        }
        .btn-outline:hover, .btn-outline:focus-visible {
            border-color: var(--clr-primary);
            color: var(--clr-primary);
            transform: translateY(-2px);
            background: rgba(201,168,76,0.06);
        }
        .btn-sm { padding: 10px 22px; font-size: 0.85rem; }

        /* ===== Features ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }
        .feature-card {
            background: var(--clr-bg-card);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            transition: all var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            background: var(--clr-bg-card-hover);
            border-color: var(--clr-border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .feature-card .icon-wrap {
            width: 60px;
            height: 60px;
            margin: 0 auto 18px;
            border: 1px solid var(--clr-border-light);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--clr-primary);
            background: rgba(201,168,76,0.06);
            transition: all var(--transition);
        }
        .feature-card:hover .icon-wrap {
            border-color: var(--clr-primary);
            background: rgba(201,168,76,0.12);
        }
        .feature-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
        .feature-card p { font-size: 0.9rem; color: var(--clr-text-muted); line-height: 1.7; }

        /* ===== Category Showcase ===== */
        .category-showcase {
            background: var(--clr-bg-alt);
            border-top: 1px solid var(--clr-border);
            border-bottom: 1px solid var(--clr-border);
        }
        .showcase-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 32px;
            align-items: center;
        }
        .showcase-text h2 { font-size: 1.8rem; margin-bottom: 16px; }
        .showcase-text p { color: var(--clr-text-muted); margin-bottom: 24px; line-height: 1.8; }
        .showcase-text .tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 24px; }
        .tag {
            display: inline-block;
            padding: 4px 14px;
            border: 1px solid var(--clr-border-light);
            border-radius: 30px;
            font-size: 0.8rem;
            color: var(--clr-text-muted);
            transition: all var(--transition);
        }
        .tag:hover { border-color: var(--clr-primary); color: var(--clr-primary); background: rgba(201,168,76,0.06); }
        .showcase-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--clr-border);
            box-shadow: var(--shadow-lg);
        }
        .showcase-image img { width: 100%; height: 320px; object-fit: cover; transition: transform 0.4s ease; }
        .showcase-image:hover img { transform: scale(1.03); }

        /* ===== CMS Post List ===== */
        .post-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 24px;
        }
        .post-card {
            background: var(--clr-bg-card);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: all var(--transition);
        }
        .post-card:hover {
            background: var(--clr-bg-card-hover);
            border-color: var(--clr-border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow);
        }
        .post-card .post-thumb {
            height: 180px;
            background: var(--clr-bg-alt);
            overflow: hidden;
        }
        .post-card .post-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
        .post-card:hover .post-thumb img { transform: scale(1.05); }
        .post-card .post-body { padding: 20px; }
        .post-card .post-cat {
            display: inline-block;
            font-size: 0.7rem;
            padding: 2px 12px;
            border: 1px solid var(--clr-primary);
            border-radius: 30px;
            color: var(--clr-primary);
            letter-spacing: 0.5px;
            margin-bottom: 10px;
            background: rgba(201,168,76,0.06);
        }
        .post-card .post-title {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .post-card .post-title a { color: var(--clr-text); }
        .post-card .post-title a:hover { color: var(--clr-primary); }
        .post-card .post-meta {
            font-size: 0.8rem;
            color: var(--clr-text-muted);
            display: flex;
            gap: 16px;
            align-items: center;
        }
        .post-card .post-meta i { margin-right: 4px; }
        .post-card .post-excerpt {
            font-size: 0.88rem;
            color: var(--clr-text-muted);
            margin-top: 10px;
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .empty-posts {
            text-align: center;
            padding: 48px 24px;
            color: var(--clr-text-muted);
            border: 1px dashed var(--clr-border);
            border-radius: var(--radius-lg);
            font-size: 1rem;
        }

        /* ===== Stats / Trust ===== */
        .stats-section {
            background: var(--clr-bg-alt);
            border-top: 1px solid var(--clr-border);
            border-bottom: 1px solid var(--clr-border);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }
        .stat-item .stat-number {
            font-family: var(--font-title);
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--clr-primary);
            letter-spacing: 1px;
        }
        .stat-item .stat-label {
            font-size: 0.85rem;
            color: var(--clr-text-muted);
            margin-top: 6px;
        }

        /* ===== Process ===== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 32px;
            counter-reset: step;
        }
        .process-step {
            text-align: center;
            position: relative;
            padding-top: 48px;
        }
        .process-step::before {
            counter-increment: step;
            content: counter(step);
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 40px;
            border: 2px solid var(--clr-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--font-title);
            font-weight: 700;
            color: var(--clr-primary);
            background: rgba(201,168,76,0.06);
        }
        .process-step h3 { font-size: 1.05rem; margin-bottom: 8px; }
        .process-step p { font-size: 0.85rem; color: var(--clr-text-muted); line-height: 1.6; }

        /* ===== FAQ ===== */
        .faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
        .faq-item {
            background: var(--clr-bg-card);
            border: 1px solid var(--clr-border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: border-color var(--transition);
        }
        .faq-item:hover { border-color: var(--clr-border-light); }
        .faq-question {
            width: 100%;
            background: none;
            border: none;
            padding: 18px 24px;
            text-align: left;
            font-weight: 600;
            font-size: 1rem;
            color: var(--clr-text);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-family: var(--font-body);
            transition: color var(--transition);
        }
        .faq-question:hover { color: var(--clr-primary); }
        .faq-question .faq-icon { transition: transform var(--transition); font-size: 0.9rem; color: var(--clr-primary); }
        .faq-item.open .faq-question .faq-icon { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 0.9rem;
            color: var(--clr-text-muted);
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-answer { display: block; }

        /* ===== CTA ===== */
        .cta-section {
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            position: relative;
            padding: 100px 0;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(28,24,21,0.85);
        }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 {
            font-size: 2rem;
            color: #fff;
            margin-bottom: 16px;
        }
        .cta-section p {
            color: var(--clr-text-muted);
            max-width: 520px;
            margin: 0 auto 32px;
            font-size: 1rem;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--clr-bg-alt);
            border-top: 1px solid var(--clr-border);
            padding: 48px 0 32px;
        }
        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            font-family: var(--font-title);
            font-size: 1.2rem;
            font-weight: 900;
            color: var(--clr-primary);
            letter-spacing: 2px;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-brand p { font-size: 0.85rem; color: var(--clr-text-muted); line-height: 1.7; max-width: 320px; }
        .footer-col h4 {
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 16px;
            color: var(--clr-text);
            letter-spacing: 1px;
        }
        .footer-col ul li { margin-bottom: 8px; }
        .footer-col ul a {
            font-size: 0.85rem;
            color: var(--clr-text-muted);
            transition: color var(--transition);
        }
        .footer-col ul a:hover { color: var(--clr-primary); }
        .footer-bottom {
            border-top: 1px solid var(--clr-border);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--clr-text-muted);
        }
        .footer-bottom a { color: var(--clr-text-muted); }
        .footer-bottom a:hover { color: var(--clr-primary); }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .showcase-grid { grid-template-columns: 1fr; }
            .showcase-image img { height: 250px; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
            .footer-main { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .side-nav { display: none; }
            .mobile-top-bar { display: flex; }
            .main-content { margin-left: 0; padding-top: 60px; }
            .hero { padding: 80px 20px 60px; min-height: auto; }
            .hero h1 { font-size: 2rem; }
            .hero .hero-desc { font-size: 1rem; }
            .section { padding: 48px 0; }
            .section-title { font-size: 1.5rem; }
            .features-grid { grid-template-columns: 1fr 1fr; }
            .post-grid { grid-template-columns: 1fr; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
            .stat-item .stat-number { font-size: 2rem; }
            .process-steps { grid-template-columns: 1fr 1fr; gap: 24px; }
            .footer-main { grid-template-columns: 1fr; gap: 28px; }
            .footer-bottom { flex-direction: column; text-align: center; }
            .cta-section { padding: 64px 0; }
            .cta-section h2 { font-size: 1.5rem; }
        }
        @media (max-width: 520px) {
            .features-grid { grid-template-columns: 1fr; }
            .process-steps { grid-template-columns: 1fr; }
            .hero h1 { font-size: 1.6rem; }
            .hero .hero-actions .btn { width: 100%; justify-content: center; }
            .stats-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
            .container { padding: 0 16px; }
            .section { padding: 36px 0; }
            .post-card .post-thumb { height: 140px; }
        }

        /* ===== Utilities ===== */
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mb-16 { margin-bottom: 16px; }
        .gap-8 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #b8860b;
            --primary-dark: #8b6914;
            --primary-light: #daa520;
            --secondary: #2c2c2c;
            --accent: #d4a373;
            --bg-dark: #1a1a1a;
            --bg-mid: #2a2a2a;
            --bg-light: #f5f0e8;
            --bg-card: #fffcf5;
            --text-main: #2c2c2c;
            --text-light: #6b6b6b;
            --text-white: #f5f0e8;
            --text-muted: #8a8a8a;
            --border: #d4c9b8;
            --border-light: #e8e0d5;
            --radius: 12px;
            --radius-sm: 6px;
            --radius-lg: 20px;
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-serif: 'Georgia', 'Times New Roman', serif;
            --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --nav-width: 240px;
            --header-height: 0px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-light);
            color: var(--text-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }

        a {
            color: var(--primary-dark);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
            text-decoration: underline;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-serif);
            line-height: 1.3;
            color: var(--secondary);
            font-weight: 700;
        }

        p {
            margin-bottom: 1rem;
            color: var(--text-main);
        }

        /* ===== 容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ===== 左侧导航 ===== */
        .side-nav {
            width: var(--nav-width);
            min-height: 100vh;
            background: var(--bg-dark);
            color: var(--text-white);
            display: flex;
            flex-direction: column;
            position: fixed;
            top: 0;
            left: 0;
            z-index: 1000;
            padding: 32px 0;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 4px 0 30px rgba(0, 0, 0, 0.3);
            transition: var(--transition);
        }

        .nav-logo {
            font-family: var(--font-serif);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary-light);
            padding: 0 24px 28px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            gap: 10px;
            letter-spacing: 0.5px;
        }
        .nav-logo i {
            font-size: 1.6rem;
            color: var(--primary);
        }

        .nav-links {
            flex: 1;
            padding: 24px 0;
        }
        .nav-links li {
            margin: 2px 0;
        }
        .nav-links li a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 24px;
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.95rem;
            font-weight: 500;
            border-left: 3px solid transparent;
            transition: var(--transition);
            text-decoration: none;
        }
        .nav-links li a i {
            width: 20px;
            text-align: center;
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.4);
            transition: var(--transition);
        }
        .nav-links li a:hover {
            color: var(--text-white);
            background: rgba(255, 255, 255, 0.05);
            border-left-color: var(--primary-light);
            text-decoration: none;
        }
        .nav-links li a:hover i {
            color: var(--primary-light);
        }
        .nav-links li a.active {
            color: var(--text-white);
            background: rgba(218, 165, 32, 0.12);
            border-left-color: var(--primary-light);
        }
        .nav-links li a.active i {
            color: var(--primary-light);
        }

        .nav-footer {
            padding: 20px 24px 8px 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            font-size: 0.75rem;
            color: rgba(255, 255, 255, 0.3);
            line-height: 1.6;
            text-align: center;
        }

        /* ===== 主内容区 ===== */
        .main-content {
            margin-left: var(--nav-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            width: calc(100% - var(--nav-width));
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            padding: 100px 0 90px;
            background: var(--bg-dark) url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: var(--text-white);
            text-align: center;
            isolation: isolate;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.88) 0%, rgba(26, 26, 26, 0.7) 100%);
            z-index: 0;
        }
        .hero-section .container {
            position: relative;
            z-index: 1;
        }
        .hero-section h1 {
            font-size: 3.2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: 1px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
        }
        .hero-section h1 span {
            color: var(--primary-light);
        }
        .hero-section p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 720px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }
        .hero-section .hero-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            background: var(--primary);
            color: #fff;
            font-size: 1.05rem;
            font-weight: 600;
            border-radius: var(--radius);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            box-shadow: 0 4px 20px rgba(184, 134, 11, 0.35);
        }
        .hero-section .hero-cta:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(184, 134, 11, 0.45);
            text-decoration: none;
            color: #fff;
        }
        .hero-section .hero-cta i {
            font-size: 1.2rem;
        }

        /* ===== 板块通用 ===== */
        .section-block {
            padding: 70px 0;
        }
        .section-block:nth-child(even) {
            background: var(--bg-card);
        }
        .section-block:nth-child(odd) {
            background: var(--bg-light);
        }
        .section-title {
            text-align: center;
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--secondary);
            margin-bottom: 12px;
        }
        .section-subtitle {
            text-align: center;
            font-size: 1.05rem;
            color: var(--text-light);
            max-width: 640px;
            margin: 0 auto 48px;
            line-height: 1.7;
        }
        .section-subtitle i {
            color: var(--primary);
            margin-right: 6px;
        }

        /* ===== 介绍区 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .intro-grid .intro-text h2 {
            font-size: 2rem;
            margin-bottom: 20px;
            color: var(--secondary);
        }
        .intro-grid .intro-text p {
            font-size: 1.05rem;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.8;
        }
        .intro-grid .intro-text .badge-list {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
        .intro-grid .intro-text .badge-list span {
            background: var(--primary-light);
            color: #fff;
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 500;
        }
        .intro-grid .intro-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card-grid .card-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            overflow: hidden;
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .card-grid .card-item:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border);
        }
        .card-grid .card-item .card-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: 0;
            display: block;
        }
        .card-grid .card-item .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-grid .card-item .card-body h3 {
            font-size: 1.25rem;
            margin-bottom: 10px;
            color: var(--secondary);
        }
        .card-grid .card-item .card-body p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }
        .card-grid .card-item .card-body .card-tag {
            display: inline-block;
            background: var(--primary-light);
            color: #fff;
            padding: 4px 14px;
            border-radius: 30px;
            font-size: 0.8rem;
            font-weight: 500;
            align-self: flex-start;
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }
        .steps-grid .step-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }
        .steps-grid .step-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .steps-grid .step-item::before {
            counter-increment: step;
            content: counter(step);
            display: block;
            width: 48px;
            height: 48px;
            line-height: 48px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-size: 1.3rem;
            font-weight: 700;
            font-family: var(--font-serif);
            margin: 0 auto 16px;
            box-shadow: 0 4px 12px rgba(184, 134, 11, 0.3);
        }
        .steps-grid .step-item h4 {
            font-size: 1.1rem;
            margin-bottom: 8px;
            color: var(--secondary);
        }
        .steps-grid .step-item p {
            font-size: 0.92rem;
            color: var(--text-light);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ===== 场景区块 ===== */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .scene-grid .scene-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .scene-grid .scene-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .scene-grid .scene-item .scene-icon {
            font-size: 2.6rem;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .scene-grid .scene-item h4 {
            font-size: 1.15rem;
            margin-bottom: 10px;
            color: var(--secondary);
        }
        .scene-grid .scene-item p {
            font-size: 0.95rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-list details {
            background: var(--bg-card);
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-list details:hover {
            border-color: var(--border);
        }
        .faq-list details summary {
            padding: 20px 28px;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--secondary);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            background: var(--bg-card);
            transition: var(--transition);
            list-style: none;
            user-select: none;
        }
        .faq-list details summary::-webkit-details-marker {
            display: none;
        }
        .faq-list details summary::after {
            content: '\f107';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 1.2rem;
            color: var(--primary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-list details[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-list details summary:hover {
            background: rgba(184, 134, 11, 0.04);
        }
        .faq-list details .faq-answer {
            padding: 0 28px 20px 28px;
            color: var(--text-light);
            font-size: 0.98rem;
            line-height: 1.8;
        }
        .faq-list details .faq-answer p {
            margin-bottom: 0;
            color: var(--text-light);
        }

        /* ===== CTA ===== */
        .cta-block {
            background: var(--bg-dark) url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            padding: 80px 0;
            text-align: center;
            isolation: isolate;
            position: relative;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(26, 26, 26, 0.88) 0%, rgba(26, 26, 26, 0.72) 100%);
            z-index: 0;
        }
        .cta-block .container {
            position: relative;
            z-index: 1;
        }
        .cta-block h2 {
            font-size: 2.4rem;
            color: var(--text-white);
            margin-bottom: 16px;
        }
        .cta-block p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-block .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 44px;
            background: var(--primary);
            color: #fff;
            font-size: 1.1rem;
            font-weight: 600;
            border-radius: var(--radius);
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
            box-shadow: 0 4px 20px rgba(184, 134, 11, 0.35);
        }
        .cta-block .cta-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 8px 30px rgba(184, 134, 11, 0.45);
            text-decoration: none;
            color: #fff;
        }
        .cta-block .cta-btn i {
            font-size: 1.2rem;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-footer .footer-main {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }
        .site-footer .footer-brand .footer-logo {
            font-family: var(--font-serif);
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary-light);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .site-footer .footer-brand .footer-logo i {
            font-size: 1.4rem;
            color: var(--primary);
        }
        .site-footer .footer-brand p {
            font-size: 0.92rem;
            color: rgba(255, 255, 255, 0.5);
            line-height: 1.7;
            margin-bottom: 0;
        }
        .site-footer .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 16px;
            font-family: var(--font-sans);
        }
        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }
        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.9rem;
            transition: var(--transition);
            text-decoration: none;
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
            text-decoration: none;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.3);
            flex-wrap: wrap;
            gap: 12px;
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .intro-grid .intro-image {
                order: -1;
            }
            .hero-section h1 {
                font-size: 2.6rem;
            }
        }

        @media (max-width: 768px) {
            body {
                flex-direction: column;
            }
            .side-nav {
                position: relative;
                width: 100%;
                min-height: auto;
                flex-direction: row;
                flex-wrap: wrap;
                padding: 12px 16px;
                border-right: none;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
                align-items: center;
            }
            .nav-logo {
                padding: 0 16px 0 0;
                border-bottom: none;
                font-size: 1.1rem;
                flex-shrink: 0;
            }
            .nav-logo i {
                font-size: 1.3rem;
            }
            .nav-links {
                padding: 0;
                display: flex;
                flex: 1;
                justify-content: flex-end;
                gap: 4px;
            }
            .nav-links li a {
                padding: 8px 14px;
                font-size: 0.85rem;
                border-left: none;
                border-bottom: 2px solid transparent;
                gap: 6px;
            }
            .nav-links li a.active {
                border-left: none;
                border-bottom-color: var(--primary-light);
                background: transparent;
            }
            .nav-links li a i {
                font-size: 0.95rem;
            }
            .nav-footer {
                display: none;
            }
            .main-content {
                margin-left: 0;
                width: 100%;
            }
            .hero-section {
                padding: 60px 0 50px;
            }
            .hero-section h1 {
                font-size: 2rem;
            }
            .hero-section p {
                font-size: 1rem;
            }
            .section-block {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.8rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .steps-grid .step-item {
                padding: 24px 16px;
            }
            .scene-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .site-footer .footer-main {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .faq-list details summary {
                padding: 16px 20px;
                font-size: 0.98rem;
            }
            .faq-list details .faq-answer {
                padding: 0 20px 16px 20px;
            }
            .cta-block h2 {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 520px) {
            .side-nav .nav-links li a {
                padding: 6px 10px;
                font-size: 0.78rem;
            }
            .side-nav .nav-links li a i {
                font-size: 0.85rem;
            }
            .nav-logo {
                font-size: 0.95rem;
            }
            .hero-section h1 {
                font-size: 1.6rem;
            }
            .hero-section p {
                font-size: 0.92rem;
            }
            .hero-section .hero-cta {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 32px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .card-grid .card-item .card-img {
                height: 160px;
            }
            .cta-block .cta-btn {
                padding: 14px 28px;
                font-size: 0.98rem;
            }
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 实用辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-1 {
            margin-top: 8px;
        }
        .mt-2 {
            margin-top: 16px;
        }
        .mt-3 {
            margin-top: 24px;
        }
        .mb-2 {
            margin-bottom: 16px;
        }
        .mb-3 {
            margin-bottom: 24px;
        }
        .gap-1 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }

        /* ===== Foundation 覆盖 ===== */
        .button {
            transition: var(--transition) !important;
            border-radius: var(--radius) !important;
        }
        .button:hover {
            transform: translateY(-2px);
        }
        .card {
            border-radius: var(--radius) !important;
            border: 1px solid var(--border-light) !important;
            box-shadow: var(--shadow) !important;
            transition: var(--transition) !important;
        }
        .card:hover {
            box-shadow: var(--shadow-hover) !important;
            transform: translateY(-4px);
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --nav-bg: #1a1510;
            --nav-text: #c9bca8;
            --nav-text-dim: #8a7d6b;
            --nav-active: #d4a84a;
            --nav-border: #2f271e;
            --body-bg: #f2ebe1;
            --card-bg: #fdfaf5;
            --card-border: #d8cfc0;
            --text-primary: #3d3224;
            --text-secondary: #6b5d4b;
            --text-muted: #9a8d7b;
            --accent: #b8873a;
            --accent-hover: #a07630;
            --accent-light: #e8d5b0;
            --btn-text: #ffffff;
            --footer-bg: #1a1510;
            --footer-text: #c9bca8;
            --footer-border: #2f271e;
            --radius-sm: 4px;
            --radius-md: 8px;
            --radius-lg: 12px;
            --shadow-card: 0 2px 12px rgba(0,0,0,0.06);
            --shadow-hover: 0 6px 24px rgba(0,0,0,0.10);
            --transition: 0.25s ease;
            --font-serif: 'Playfair Display', 'Georgia', 'Times New Roman', serif;
            --font-sans: 'Inter', -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            --max-content: 860px;
            --nav-width: 240px;
        }

        /* ===== 基础 Reset ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--body-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }
        a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
        a:hover { color: var(--accent-hover); }
        a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }
        img { max-width: 100%; height: auto; display: block; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 {
            font-family: var(--font-serif);
            font-weight: 600;
            line-height: 1.3;
            color: var(--text-primary);
        }
        p { margin-bottom: 1.2em; }
        p:last-child { margin-bottom: 0; }

        /* ===== 左侧导航 ===== */
        .side-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--nav-width);
            height: 100vh;
            background: var(--nav-bg);
            color: var(--nav-text);
            display: flex;
            flex-direction: column;
            padding: 2rem 1.25rem;
            z-index: 1000;
            border-right: 1px solid var(--nav-border);
            overflow-y: auto;
        }
        .nav-logo {
            font-family: var(--font-serif);
            font-size: 1.35rem;
            font-weight: 700;
            color: #ede4d6;
            display: flex;
            align-items: center;
            gap: 0.6rem;
            padding-bottom: 1.8rem;
            border-bottom: 1px solid var(--nav-border);
            margin-bottom: 1.8rem;
        }
        .nav-logo i { color: var(--nav-active); font-size: 1.2rem; }
        .nav-links { flex: 1; display: flex; flex-direction: column; gap: 0.25rem; }
        .nav-links li a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.7rem 1rem;
            border-radius: var(--radius-md);
            color: var(--nav-text);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition);
            text-decoration: none;
        }
        .nav-links li a i { width: 1.2rem; text-align: center; color: var(--nav-text-dim); transition: color var(--transition); }
        .nav-links li a:hover { background: rgba(255,255,255,0.06); color: #ede4d6; }
        .nav-links li a:hover i { color: var(--nav-active); }
        .nav-links li a.active {
            background: rgba(212, 168, 74, 0.12);
            color: var(--nav-active);
            font-weight: 600;
        }
        .nav-links li a.active i { color: var(--nav-active); }
        .nav-footer {
            margin-top: auto;
            padding-top: 1.5rem;
            border-top: 1px solid var(--nav-border);
            font-size: 0.75rem;
            color: var(--nav-text-dim);
            line-height: 1.6;
        }
        .nav-footer p { margin-bottom: 0; }

        /* ===== 主内容区 ===== */
        .main-content {
            margin-left: var(--nav-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== 文章 Hero ===== */
        .article-hero {
            position: relative;
            padding: 4rem 2rem 3rem;
            background: linear-gradient(135deg, #2c241a 0%, #1a1510 100%);
            color: #ede4d6;
            overflow: hidden;
            min-height: 280px;
            display: flex;
            align-items: center;
        }
        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.18;
            mix-blend-mode: overlay;
        }
        .article-hero .container {
            position: relative;
            z-index: 2;
            max-width: var(--max-content);
            margin: 0 auto;
            width: 100%;
        }
        .article-hero .hero-breadcrumb {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-size: 0.85rem;
            color: var(--nav-text-dim);
            margin-bottom: 1.2rem;
            flex-wrap: wrap;
        }
        .article-hero .hero-breadcrumb a {
            color: var(--accent);
            text-decoration: none;
        }
        .article-hero .hero-breadcrumb a:hover { color: var(--accent-hover); text-decoration: underline; }
        .article-hero .hero-breadcrumb span { color: var(--nav-text-dim); }
        .article-hero h1 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #f5ede0;
            line-height: 1.25;
            margin-bottom: 1rem;
            max-width: 90%;
        }
        .article-hero .article-meta {
            display: flex;
            align-items: center;
            gap: 1.5rem;
            font-size: 0.9rem;
            color: var(--nav-text-dim);
            flex-wrap: wrap;
        }
        .article-hero .article-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }
        .article-hero .article-meta .meta-item i { color: var(--accent); font-size: 0.85rem; }
        .article-hero .article-meta .category-badge {
            display: inline-block;
            background: rgba(212, 168, 74, 0.18);
            color: var(--accent);
            padding: 0.2rem 0.9rem;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 500;
            border: 1px solid rgba(212, 168, 74, 0.25);
        }

        /* ===== 文章正文区 ===== */
        .article-body-wrap {
            flex: 1;
            padding: 3rem 2rem 4rem;
        }
        .article-body-wrap .container {
            max-width: var(--max-content);
            margin: 0 auto;
        }
        .article-body {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-lg);
            padding: 2.5rem 3rem;
            box-shadow: var(--shadow-card);
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-primary);
        }
        .article-body h2, .article-body h3, .article-body h4 {
            font-family: var(--font-serif);
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }
        .article-body h2 { font-size: 1.65rem; border-bottom: 2px solid var(--accent-light); padding-bottom: 0.4rem; }
        .article-body h3 { font-size: 1.35rem; }
        .article-body p { margin-bottom: 1.2em; }
        .article-body ul, .article-body ol { margin-bottom: 1.2em; padding-left: 1.8rem; list-style: disc; }
        .article-body ol { list-style: decimal; }
        .article-body li { margin-bottom: 0.4em; }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            background: var(--accent-light);
            padding: 1rem 1.5rem;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body img { border-radius: var(--radius-md); margin: 1.5rem auto; }
        .article-body a { text-decoration: underline; text-underline-offset: 2px; }
        .article-body .not-found {
            text-align: center;
            padding: 3rem 1rem;
        }
        .article-body .not-found i { font-size: 3rem; color: var(--text-muted); margin-bottom: 1rem; display: block; }
        .article-body .not-found p { font-size: 1.1rem; color: var(--text-secondary); margin-bottom: 1.5rem; }
        .article-body .not-found .btn-home {
            display: inline-block;
            padding: 0.7rem 2rem;
            background: var(--accent);
            color: var(--btn-text);
            border-radius: var(--radius-md);
            font-weight: 500;
            text-decoration: none;
            transition: background var(--transition);
        }
        .article-body .not-found .btn-home:hover { background: var(--accent-hover); }

        /* ===== 文章底部导航 ===== */
        .article-footer-nav {
            margin-top: 2.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1.5rem;
            border-top: 1px solid var(--card-border);
            flex-wrap: wrap;
            gap: 1rem;
        }
        .article-footer-nav a {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1.2rem;
            background: var(--body-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-primary);
            transition: all var(--transition);
            text-decoration: none;
        }
        .article-footer-nav a:hover {
            background: var(--accent-light);
            border-color: var(--accent);
            color: var(--accent-hover);
        }
        .article-footer-nav .back-home i { color: var(--accent); }

        /* ===== 相关推荐 ===== */
        .related-section {
            padding: 0 2rem 3rem;
        }
        .related-section .container {
            max-width: var(--max-content);
            margin: 0 auto;
        }
        .related-section h2 {
            font-family: var(--font-serif);
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            padding-bottom: 0.6rem;
            border-bottom: 2px solid var(--accent-light);
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }
        .related-section h2 i { color: var(--accent); font-size: 1.2rem; }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 1.5rem;
        }
        .related-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition);
            text-decoration: none;
            color: var(--text-primary);
            display: block;
        }
        .related-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: var(--accent);
            color: var(--text-primary);
        }
        .related-card .card-img {
            width: 100%;
            height: 140px;
            object-fit: cover;
            border-bottom: 1px solid var(--card-border);
        }
        .related-card .card-body {
            padding: 1rem 1.2rem 1.2rem;
        }
        .related-card .card-body h3 {
            font-family: var(--font-serif);
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0.3rem;
            line-height: 1.35;
        }
        .related-card .card-body .card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== CTA 区块 ===== */
        .article-cta {
            padding: 2.5rem 2rem 3.5rem;
        }
        .article-cta .container {
            max-width: var(--max-content);
            margin: 0 auto;
        }
        .cta-box {
            background: linear-gradient(135deg, #2c241a 0%, #1a1510 100%);
            border-radius: var(--radius-lg);
            padding: 2.5rem 3rem;
            text-align: center;
            color: #ede4d6;
            position: relative;
            overflow: hidden;
        }
        .cta-box::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-box h2 {
            font-family: var(--font-serif);
            font-size: 1.6rem;
            color: #f5ede0;
            margin-bottom: 0.8rem;
            position: relative;
            z-index: 1;
        }
        .cta-box p {
            font-size: 1rem;
            color: var(--nav-text-dim);
            margin-bottom: 1.5rem;
            position: relative;
            z-index: 1;
        }
        .cta-box .btn-cta {
            display: inline-block;
            padding: 0.75rem 2.5rem;
            background: var(--accent);
            color: var(--btn-text);
            border-radius: var(--radius-md);
            font-weight: 600;
            font-size: 1rem;
            text-decoration: none;
            transition: all var(--transition);
            position: relative;
            z-index: 1;
        }
        .cta-box .btn-cta:hover { background: var(--accent-hover); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(184, 135, 58, 0.3); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding: 3rem 2rem 1.5rem;
            margin-top: auto;
            border-top: 1px solid var(--footer-border);
        }
        .site-footer .container { max-width: 1100px; margin: 0 auto; }
        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 2.5rem;
            padding-bottom: 2rem;
            border-bottom: 1px solid var(--footer-border);
            margin-bottom: 1.5rem;
        }
        .footer-logo {
            font-family: var(--font-serif);
            font-size: 1.2rem;
            font-weight: 700;
            color: #ede4d6;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.8rem;
        }
        .footer-logo i { color: var(--nav-active); }
        .footer-brand p { font-size: 0.9rem; color: var(--nav-text-dim); line-height: 1.7; margin-bottom: 0; }
        .footer-col h4 {
            font-family: var(--font-serif);
            font-size: 1rem;
            color: #ede4d6;
            margin-bottom: 1rem;
            font-weight: 600;
        }
        .footer-col ul li { margin-bottom: 0.5rem; }
        .footer-col ul li a {
            color: var(--nav-text-dim);
            font-size: 0.9rem;
            text-decoration: none;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover { color: var(--accent); }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.8rem;
            color: var(--nav-text-dim);
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .footer-bottom span:first-child { font-weight: 500; }

        /* ===== 移动端断点 ===== */
        @media (max-width: 820px) {
            body { flex-direction: column; }
            .side-nav {
                position: relative;
                width: 100%;
                height: auto;
                flex-direction: row;
                flex-wrap: wrap;
                align-items: center;
                padding: 0.8rem 1.2rem;
                border-right: none;
                border-bottom: 1px solid var(--nav-border);
            }
            .nav-logo {
                padding-bottom: 0;
                border-bottom: none;
                margin-bottom: 0;
                font-size: 1.1rem;
                flex: 1;
            }
            .nav-links {
                flex: none;
                flex-direction: row;
                gap: 0.15rem;
                order: 3;
                width: 100%;
                margin-top: 0.6rem;
                padding-top: 0.6rem;
                border-top: 1px solid var(--nav-border);
                overflow-x: auto;
            }
            .nav-links li a {
                padding: 0.45rem 0.8rem;
                font-size: 0.85rem;
                white-space: nowrap;
            }
            .nav-footer { display: none; }
            .main-content { margin-left: 0; }
            .article-hero { padding: 2.5rem 1.2rem 2rem; min-height: 200px; }
            .article-hero h1 { font-size: 1.5rem; max-width: 100%; }
            .article-body-wrap { padding: 1.5rem 1rem 2.5rem; }
            .article-body { padding: 1.5rem 1.2rem; font-size: 1rem; }
            .article-body h2 { font-size: 1.35rem; }
            .article-body h3 { font-size: 1.15rem; }
            .related-grid { grid-template-columns: 1fr; }
            .cta-box { padding: 2rem 1.5rem; }
            .cta-box h2 { font-size: 1.3rem; }
            .footer-main { grid-template-columns: 1fr; gap: 1.5rem; }
            .article-footer-nav { flex-direction: column; align-items: flex-start; }
        }

        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.25rem; }
            .article-hero .article-meta { font-size: 0.8rem; gap: 0.8rem; flex-direction: column; align-items: flex-start; }
            .article-body { padding: 1.2rem 1rem; }
            .article-body blockquote { padding: 0.8rem 1rem; }
            .related-card .card-img { height: 110px; }
            .cta-box { padding: 1.5rem 1rem; }
            .cta-box h2 { font-size: 1.1rem; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== 额外 Foundation 覆盖 ===== */
        .grid-container { max-width: var(--max-content); padding-left: 0; padding-right: 0; }
        .cell { padding: 0; }
        .button { transition: all var(--transition); }